1321041004 has 6 divisors (see below), whose sum is σ = 2311821764. Its totient is φ = 660520500.

The previous prime is 1321040983. The next prime is 1321041013. The reversal of 1321041004 is 4001401231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165130122 + ... + 165130129.

Almost surely, 2^1321041004 is an apocalyptic number.

It is an amenable number.

1321041004 is a deficient number, since it is larger than the sum of its proper divisors (990780760).

1321041004 is a wasteful number, since it uses less digits than its factorization.

1321041004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330260255 (or 330260253 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1321041004 is about 36346.1277717448. The cubic root of 1321041004 is about 1097.2496036810.

Adding to 1321041004 its reverse (4001401231), we get a palindrome (5322442235).

The spelling of 1321041004 in words is "one billion, three hundred twenty-one million, forty-one thousand, four".